Nissan Murano: Wiper & Washer :: Dtc/circuit Diagnosis / Washer Switch
Description
-
Washer switch is integrated with the combination switch (wiper and washer switch).
-
Combination switch (wiper and washer switch) switches polarity between front and rear washer operation to supply power and ground to the front and rear washer motor.

Component Inspection
CHECK FRONT WASHER SWITCH
-
Ignition switch OFF.
-
Disconnect combination switch (wiper and washer switch).
-
Check continuity between the combination switch (wiper and washer switch) terminals.
| A: Terminal 4 |

|
| B: Terminal 6 |
| C: Terminal 3 |
| D: Terminal 1 |
| Combination switch (wiper and washer switch) | Condition | Continuity |
| Terminals |
| 1 |
6 |
Front washer switch ON |
Yes |
| 3 |
4 |
Is the inspection result normal?
YES>>
GO TO 2.
NO>>
Replace combination switch (wiper and washer switch). Refer to Removal and Installation.
CHECK REAR WASHER SWITCH
-
Check continuity between the combination switch (wiper and washer switch) terminals.
| A: Terminal 4 |

|
| B: Terminal 6 |
| C: Terminal 3 |
| D: Terminal 1 |
| Combination switch (wiper and washer switch) | Condition | Continuity |
| Terminals |
| 1 |
4 |
Rear washer switch ON |
Yes |
| 6 |
3 |
Is the inspection result normal?
YES>>
Wiper and washer switch is normal.
NO>>
Replace combination switch (wiper and washer switch). Refer to Removal and Installation.
Diagnosis Procedure
CHECK FRONT AND REAR WASHER MOTOR FUSE
Ignition switch OFF.
Check that the following fuse is not blown:
Component Location Fuse No...
Component Function Check
CHECK REAR WIPER ON OPERATION
CONSULT
Select “RR WIPER” in “Active Test” mode of “BCM(WIPER)”.
While operating the test item, check rear wiper operation...
Other information:
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P2096
POST CAT FUEL TRIM SYS B1
(Post catalyst fuel trim system too lean bank 1)
Diagnosis condition
—
Signal (terminal)
—
Threshold
The output voltage computed by ECM from the A/F sensor 1 signal is shifts to the lean side for a specified period
Diagnosis delay time
—
P2097
POST CAT FUEL TRIM SYS B1
(Post catalyst fuel trim system too rich bank 1)
Diagnosis condition
—
Signal (terminal)
—
Threshold
The A/F signal computed by ECM from the A/F sensor 1 signal is shifts to the rich side for a specified period
Diagnosis delay time
—
P2098
POST CAT FUEL TRIM SYS B2
(Post catalyst fuel trim system too lean bank 2)
Diagnosis condition
—
Signal (terminal)
—
Threshold
The output voltage computed by ECM from the A/F sensor 1 signal is shifts to the lean side for a specified period
Diagnosis delay time
—
P2099
POST CAT FUEL TRIM SYS B2
(Post catalyst fuel trim system too rich bank 2)
Diagnosis condition
—
Signal (terminal)
—
Threshold
The A/F signal computed by ECM from the A/F sensor 1 signal is shifts to the rich side for a specified period
Diagnosis delay time
—
POSSIBLE CAUSEDTC P2096
A/F sensor 1 (bank 1)
A/F sensor 1 heater
Heated oxygen sensor 2 (bank 1)
Fuel pressure
Fuel injector
Intake air leaks
Exhaust gas leaks
DTC P2097
A/F sensor 1 (bank 1)
A/F sensor 1 heater
Heated oxygen sensor 2 (bank 1)
Fuel pressure
Fuel injector
Intake air leaks
Exhaust gas leaks
DTC P2098
A/F sensor 1 (bank 2)
A/F sensor 1 heater
Heated oxygen sensor 2 (bank 2)
Fuel pressure
Fuel injector
Intake air leaks
Exhaust gas leaks
DTC P2099
A/F sensor 1 (bank 2)
A/F sensor 1 heater
Heated oxygen sensor 2 (bank 2)
Fuel pressure
Fuel injector
Intake air leaks
Exhaust gas leaks
FAIL-SAFENot applicable
DTC Confirmation Procedure
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test...
Description
Controls the lamp (ground side) by PWM signal (duty) when the map lamp main switch is DOOR.
Component Function Check
CAUTION:
Check the following items first:
Battery saver output/power supply circuit
Front room/map lamp assembly
CHECK MAP LAMP CONTROL FUNCTION
CONSULT
Ignition switch ON...